Saturday
September 20, 2014

Posts by craig


Total # Posts: 77

algebra
Question: 89 of 111 Leave Questionnaire You need to hire a part-time associate to work 30 hours a week in your store. You have $250 in labor budget for the new associate each week. You just interviewed an excellent candidate for the position who has requested to be paid $9.00...
June 4, 2014

Chemistry
Methane reacts with water to form CO and H2 as follows: CH4(g)+H2O(g)=CO9g)+3H2(g) The value of Kp at 298 k for the reaction is 7.7 *10^24, calculate Kc. If you can please show the steps I would greatly appreciate it. Thank you
December 10, 2013

Math- urgent
8x-8-6x=20 2x=28 x=14
December 10, 2013

statistics
78
May 7, 2013

college math
How many different committees can be formed from 9 teachers and 39 students if the committee consists of 2 teachers and 3 students? In how many ways can the committee of 5 members be selected?
March 24, 2013

math
2x^4-11x^3-6x^2+64x+32=0
February 21, 2013

physics
How much friction force will be required if a car weighing 2100kg traveling at 28m/s rounds a curve of radius 59m banked at a 15 degree angle
September 25, 2012

physics
in the equation V=sqrt(r*g), what does sqrt stand for?
September 25, 2012

Math
3x-2y=0 x-y=-1
July 12, 2012

chemistry lab
Oh that's what it is? Thanks
July 9, 2012

chemistry lab
How does the presence of a common ion affect the solubility of a salt? Explain in terms of equilibrium.
July 9, 2012

Statistics
What spinner?
July 8, 2012

chemistry
thank great help! much appreciated
July 8, 2012

chemistry
Strong base is dissolved in 665 mL of 0.400 M weak acid (Ka = 3.69 × 10-5) to make a buffer with a pH of 3.94. Assume that the volume remains constant when the base is added. HA(aq) + OH-(aq) -> H2O(l) + A-(aq) Calculate the pKa value of the acid and determine the ...
July 8, 2012

geometry
a right triangle find the value with 71 5 find x n y answers
January 26, 2012

Geography
What political changes swept through Europe during the second half of the twentieth century?
January 9, 2012

MATH
the perimter of a rectangle is 20inches and its area is 16 square inches. Find the dimensions of the rectangle. I need help to set up the problem
January 5, 2012

ENGLISH
ok fine ,but thanks for the help
January 5, 2012

ENGLISH
He is right if romeo and juliet get married and the families might come together. The Friar does consent to marry Romeo and Juliet, hoping that the marriage might bring peace between the feuding families. Is this right so far.
January 5, 2012

Social Studies
Improve Not all early Americans were happy with the Constitution. Democratic-Republicans, also known as Anti-Federalists, opposed the Constitution because they feared the Federal Government would gain too much power... much like King George from whom they had just fled! They ...
January 4, 2012

ALGEBRA 1
The square of a number is equal to the sum of 21 and 4 times the number. Find the number
January 4, 2012

ALGEBRA 1
The height h is the time of seconds that the ball has been in the air with an initial vertical velocity of 48 feet per second from a height of 5 feet above the ground is given by the equation h=-16t^2 + 48t + 5 where t is the time in seconds that the ball has been in the air. ...
January 3, 2012

math
Im having a problem understanding this problem so I cant solve it. Bruce knows how many key are on his keyboard, but some dont work. How does Bruce find the number of keys that work? write to explain
December 7, 2011

Biology
Why does Beta Glucose chains have more weak bonds between the chains than there are between alpha glucose chains?
October 9, 2011

math
a rectangular pen is to be constructed alongside a barn using 120 feet of fencing. the barn will be used for one side of the pen. What should the dimensions of the pen be to maximize its area. ***Can not use calculus. This is a 9th grade question
September 28, 2011

algebra
Use the given conditions to write an equation for the line in point'slope form and slope-intercept form. Slope= -5, passing through (-9,-6) type the point-slope form ot the line Type the slope-intercept form of the line
June 6, 2011

Managerial Accounting
what management position is responsible for each variance: Sales Materials Labor Overhead General, Selling & Administrative What causes these variances?
April 5, 2011

Chemistry
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams of compound remain in solution? How may grams of solid are formed?
April 3, 2011

math
What is 58 rounded to the greatest place value?
February 3, 2011

Math
The number is between 3 and 10, you can make exactly 3 arrays with this number and it's not 9. What is it?
December 5, 2010

Math (Calc 1)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle (as shown in the figure below). (pictures of a pentagon) If the cross-sectional area is A, determine the dimensions of the ...
November 20, 2010

Biotechnology
How would you make 450 mL of a 0.250 M NaOH solution?
November 13, 2010

chemistry
stop cheating
November 1, 2010

English
It
September 29, 2010

English
I believe in this sentence: It was the world’s first movie studio. the subject is: movie studio the predicate is: was Am I correct?
September 29, 2010

English
Thank you!
September 29, 2010

English
were?
September 29, 2010

English
The first movies were different from today’s films. What is the simple predicate
September 29, 2010

math
n=1/a-1/b solve for b please show all steps
September 16, 2010

maths.
the smallest number is 2
September 11, 2010

maths.
find the lcd of each setof fractions: 1/2, 1/8, 1/16
September 11, 2010

Math
If I bought an item for $80 on which there was a 30% markup, what is the formula to determine the pre-markup price?
July 12, 2010

economics
The smaller of the two factories will begin to see diminishing returns first. That is because they will have exhausted the capacity of the fixed factor of production(i.e. the factory) sooner. In other words, production will reach its maximum level because the factory only has ...
July 12, 2010

Marketing
A manufacturer of AC units realizes a cost of $55.00 for every unit produced. Its total fixed cost is $2,000,000. If the manufacturer produces 500,000 units, calculate its: a. unit cost b. markup price if it desires a 10% returns on sales c. ROI price if it desires a 25% ...
July 12, 2010

Alge.
Graph the equation using the slope and the y-intercept. y=5/3x+2 I need to show the slope and y-intercept when I graph.
May 26, 2010

math
what is the unit rate for 250 miles in 5 hours
May 11, 2010

algebra
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 120 ft. of fence? What should the dimensions of the garden be to give the farmer the max area? Can not use calculus
March 27, 2010

Math
Is there a difference between solving a system of equations by the algebraic method and the graphical method? Why or why not?
March 10, 2010

french
i have a pc with windows is the rest it of it ok though
March 7, 2010

french
can someone check my french essay on pocket money and improve where possible very much appreciated Je recois dix livres d'argent de poche par semaine de mes parents. Pour gagner mon argent de poche je dois aider mes parents a la maison et je dirais que j'aide un peu a ...
March 7, 2010

science
a snowball rolls off the edge of a horizontal roof at a velocity of 7 m/s. what is the speed of the snowball 3 s later?
November 3, 2009

physics
what is the angular speed of Earth around the Sun in radians per second
October 9, 2009

law
according to beccaria, the system can reduce the severity of punishment and it can also do what?
September 10, 2009

Math Statistics
thank you so much! i think i got it!
June 6, 2009

Math Statistics
would this be a binomial-like should i consider it applicable for study not applicable for study
June 6, 2009

Math Statistics
An investigational drug study is being conducted. The initial screening phase needs to include enough people so that the final (approved) group has at least 10 patients. The probability of a person being approved for the study is .80. what initial sample size is needed to make...
June 6, 2009

Statistics
An investigational drug study is being conducted. The initial screening phase needs to include enough people so that the final (approved) group has at least 10 patients. The probability of a person being approved for the study is .80. what initial sample size is needed to make...
June 6, 2009

10 rhyming words
Hey, here's over ten: rail, crale, pale, stale, ale, tail, tale, nail, mail, wale, hail, fail, sail, yale, jail, gal
April 28, 2009

Math
Matt has twice as many stickers as David. If David has d stickers, and Matt gives David 10 stickers, how many stickers does each have in terms of d?
February 20, 2009

Algebra
I'm trying to solve this equation for x. .6 = x / x + 20 I can tell that X=30, but how do I prove that mathematically? We can't just plug in numbers, we have to show where we got them from.
February 16, 2009

trigonometry
show that 1-cos^2t divided by sin^2t =TANt
January 30, 2009

trigonometry
1) show that: 1-cos2t divided by sin2t= TANt 2) show that: 1-(cos2t divided by (cos x cos)t)= (TAN x TAN)t
January 28, 2009

Calculus
i'm guessing that twice differentiable means y''
November 25, 2008

please help!!!
i really don't know how to start this problem
November 25, 2008

Calculus
sorry about that: when t=0, r't=5.7; t=2, r't=4; t=5, r't=2; t=7, r't=1.2; t=11, r't=.6; t=12, r't=.5
November 25, 2008

Calculus
t: 0 2 5 7 11 12 r'(t): 5.7 4.0 2.0 1.2 0.6 0.5 The volume of a spherical hot air balloon expands as the air inside the balloon is heated. The radius of the balloon in feet is modeled by a twice-differentiable function of r of time t, where t is measured in minutes. For 0&...
November 25, 2008

precalculus
1. .015*65*12+65=76.7 million 2. 4*65=260 million
November 25, 2008

Need help fast on calc
original curve: 2y^3+6(x^2)y-12x^2+6y=1 dy/dx=(4x-2xy)/(x^2+y^2+1) a) write an equation of each horizontal tangent line to the curve b) the line through the origin with the slope .1 is tangent to the curve at P. Find x and y of point P. -when plugging y as 2 in original, it ...
November 12, 2008

Math
How do you do a factor tree for 37?
October 30, 2008

8th grade
EACH STATEMENT DESCRIBES TWO WORDS THAT WHEN FUSED TOGETHER CREATE A NEW UNRELATED WORD. QUESTION: THIS IS AN ALLOTMENT OF DNA
September 18, 2008

math
Factoring. 6n^2 +24n -18 Answer: 6(n^2 +4n -3) y^3 -y^2 + 3y -3 Answer: (y-1)(y^2 +3)
August 21, 2008

Algebra 1
The upward velocity of the water in the stream of a particular fountain is given by the formula v = -32t + 28, where t is the number of secondds after the water leaves the fountain. While going upward, the water slows down until, at the top of the stream, the water has a ...
October 11, 2007

IT
high level languages need to be translated. what are two different types of translator? Thank you for using the Jiskha Homework Help Forum. By your question do you mean human vs. mechanical (machine or computer-assisted) translation?
February 22, 2007

color theory
give me the answer for my test please
January 22, 2007

the big idea of energy
OMG LOL i cant believe ur doin the ear defenders homework too!!!! i am completly stuck too but i do no that the best material for the outside is a nard shiny plastic!! hope that helps lol!!!
December 5, 2006

how to sketch a graph of..
y=x^2-1
November 5, 2006

Math
5x
August 24, 2006

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